Calculating-machine



' F. B. PALMER.

CALCULATING MACHINE.

AP?LICATION FILED MAY 11, 1919.

1 ,330,278. Patented Feb. 10, 1920.

3 sHEETs-s'HEET 1.

B I 0%! ATTORNEZ F. B. PALMER.

CALCULATING MACHINE.

APPLICATION FILED MAY 11, 1919.

1 ,330,278. Patented Feb. 10, 1920.

3 SHEETS-SHEET 2- ITNESSES:

INVENTOR BY '1 I I h I A OR Y F. B. PALMER.

CALCULATING MACHINE.

APPLICATION FILED MAY 17, 1919.

HEET 3 3 SHEETS-S Patented Feb.

INVENTOR Wflfw UNITED STATES PATENT OFFICE.

FRANK B. PALMER, OF DGIRRANOETQN BGROUGE, PENNSYLVANIA, ASSIGNOR T0WALES ADDING MACHINE COMPANY, OF WILKES-BARBIE, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

CALCULATING-MACHINE.

Application filed. May 17, 1919.

To all whom it may concern:

Be it known that T, FRANK B. PALMER, a citizen of the United States,residing in the borough of Dorranceton, Luzerne county, Pennsylvania,have invented new and use ful Improvements in Calculating-Machines, ofwhich the following is a specification.

More particularly, this invention relates to automatic non-printmechanism, designed to prevent printing in one or more denominations,and permitting printing in the remaining denominations.

The invention is an improvement in the device shown in U. S. patent toPentecost, 1,282,282, October 22, 1918, wherein a denominationaltypecarrier, if shifted to, or past a predetermined point, actuatesmeans to prevent effective operation of the printing hammer associatedwith another denomination, to thereby eliminate printing of ciphers (orother characters) in such lastnamed denomination.

In the patent, the desired result is obtained by locking the usualprinting hammer to render it inactive, such lock being directly actuatedby the selected typecarrier.

Objects of this invention are the simplification and improvement of theformer inechanism, and reduction in the number of parts employed,togetherwith a consequent reduction in the expense oi manufacture andthe labor of assembling and adjusting the device in a calculatinmachine, which ends, I attain by utilizing a diiierent principle toarrive at the same result.

Thus, I do not interfere with the activity of the usual arintinghammers, but so arrange the mechanism that such activity is renderedinefiectual.

In so doing, I have provided a novel device which is readily applicableto machines already in use, and is not liable to get out of order orrequire repairs.

To these and other ends, my invention includes the novel features andcombinations of parts iereinatter more fully disclosed and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewthrough the well-known Wales calculating machine, in connection withwhich I h ve chosen to illustrate my invention, the elements being intheir-normal positions of rest, and certain of Specification of LettersPatent.

, Patented Feb. 10, 1920.

Serial No. 297,801.

the usual parts which are unrelated to the present invention, beingomitted;

Fig. 2 is a similar view, showing the positions of the parts at the endof the forward stroke of the main drive shaft;

Fig. 3 is a fragmentary plan view of the keyboard section, the drivemembers and counters being shown in dotted lines;

Fig. 4 is a detail plan, showing a part of my invention; and

Fig. 5 is a perspective view of a rack detent equipped with neans toenable its con trol by the stops of another denomination.

Many of the principal features of the Wales machine are so complete ydisclosed in U. S. patents to Wales, 7 94,205, July 11, 1905, and797,032, August 15, 1905; and Mc- F arland dz lVales, 880,157, February25, 1908; that an extended explanation thereof is unnecessary.

Briefly, the machine includes a keyboard having a plurality ofdenominational rows or banks of numeral keys 117, (Figs 1 and 2) eachrow comprising individual numeral keys from 1 to 9 respectively (in thedecimal system. See Fig. 3.

The keys in each denominational row, individually control the respectivestops 115 arranged in files corresponding with their respective rows ofkeys, to variously arrest the excursions of denominational positioningbars or drive racks 310.

Front arms 312 (Fig. 1) journaled on a cross shaft 300, and rear arms311 journaled on a cross rod 301', pivota lv support the severalpositioning bars or drive members 310 for forward and backwardreciprocation. Drive springs 383 conveniently connected to the severalrear arms 311 and to a restraining and restoring bar 205, tend to adance the positioning bars. such advance being normally prevented by therestraining and restoring bar which extends across the machine in frontof the several front supporting arms 312 to hold the latter, with theracks 310, in their retired positions, see F ig. 1.

The restraining and restoring bar 205 is supported and operated asfollows.

A rock shaft 265 extending across the machine, carries depending fingers265 1n which the restraining and restoring bar 205 is mounted, and acrank 220 (Fig. 1) havlng a cam slot. 22,0 is secured to .therock shaft265. A wiper 256 projecting from an arm 210 fasten the main drive shaft200, traverses the cam slot 22,0 to oscillate the crank 220 and swingthe restrainingbar 205 from and toward the front supporting arms 312..

across the machine above the positioning racks 310, carry pinions 435adapted to en- ;gage with and disengage from the racks by suitable mecianlsm well-known in the Wales machine and not herein shown.

. Depressing numeral keys 117 in the vari-' ous denominations, torepresent an amount to be accumulated on the counters 490, projects thecorresponding stops 115 into the paths of the positioning racks310, anddisplaces the detents 221 corresponding to the denominations whereinkeys have been depressed, and overlying their respective files of stops.The detents 221 are each journaled on a cross rod 202 and springs 280'restore .the detents to effective position.

7 Turning the main drive shaft forwardly raises the arm 210 and causesthe wiper 256 to traverse the cam slot 220 in the crank 220 to rock theshaft 265 and withdraw the restraining and restoring bar205 relativelyto the front supporting arms'312.

. The springs 383 are thus free .to advance the positioning bars 310until the latter are arrested by'the projected stops 115 or by thedetents 221 in denominations wherein no keys have been depressed. Thecounters A90 remain out of engagement with the positioning racks 310until near the end of the forward stroke of the main drive shaft andafter the racks have completed their advance, whereupon the countersdrop to meshtheir pinions ass with the racks (see Fig.2); V

Releasing the main drive shaft at the end of'its forward stroke enablesamainrestoring'spring 285 to return the shaft and its connected parts tothe1r home posltions,

during which return stroke, the restraining and restoring bar 205presses against the front arms 312 to retire the advanced positioningracks and thereby turn the counters engaged therewith, .to accumulatethereon the amount represented by the dekeys. l i 7 mar the'end of suchreturn stroke, but the racks have been fully retiredythe a-l d'theirpinions are disengaged mi hogs-and the keys 117 restored Jbl --8ions 3l1of'th'e rear sup- -reconnected by links typebars 5145 whose spending tothe designations of the respective he s 117 in the relateddenominations.

The drive springs 3.83, they advance their drive members orpositioningbars 310, rock the rearward extensions 3'11 to lift the typec-a-rriers514C and successively present .the types 561 to the printing line. Thestops 115. arrest the drive members 310 and type- "carri'ers 514C toposition the types at the printing line corresponding to the depressed kys, and the detents 221 arrest the positioning bars andtypecarriers whenthe cipher types areat the printing line.

A recocking bail 509 (Fig. 1) normally holds a series ofdenominationally arranged printing hammers 510, journaled on a shaft "00in cocked position against thetensions of driving esp-rings 580. Inadditiom a universal catch 518 takes over the series of hammers, each ofwhich latter jlSiLlSO provided with a suitably journaled individuallatch511 engaged with their respective hammers by springs 58.1.

Displacement of the individual latches .511 is effected by means of tripbars 513, controlled by the extensions 311 '"The extensions 311 normallyhold the trip .bars 513 in idle position against the tension of theirsprings 583. As the'rearward extensions 311 swing upwarely .on theforward stroke of the main drive shaft. to locate the types at theprinting line, they release the trip bars 513 to the action oftheirsprings 583 which lift and press the bars against the correspondingindividual latches .511 to displace the latter relatively to theirhammers 510." i

' Normally, the uppermost or cipher type i 561 of each typecarrier 514:lies just :below he printing line, but the positioning bars 3101ha-vesufficient throw on the forward theliinited. travel thus permitted herear ward extensions 311 is not sufficient to en able the trip bars 513to displace the corresponding hammer latches 511. To effect the imprintof ciphers to the right ofa sigiificant digit, the hammer latches 511each :carry a tail 518 adapted to extend beneath that when the"lastnamed 'latchis tripped, it will strike the tail of the hammer latchim- Vmedi'ately to the rightto trip such latch in case no keys have beendepressed in the (16-, nomination corresponding with such right handhammer latch. V

The recocking bail 509 is also withdrawn during the forward stroke, bymeans wellknown in the Wales machine, so that the universal catch 5 18alone retains in cocked position, those hammers wnose latches 511 havebeen displaced. e

I the adjacent hammer latch to the left so H 1,260,615. March ably, aspecial detent After the proper types. have been positioned, theuniversal catch 518 is raised by suitable means (not shown) to releasethe hammers 510 which, under the influence of their drive springs 580,strike plungers 502 and drive the latter against the positioned types toeffect an impression on the paper carried by the platen 2094.

The latches 511 to the left of the digit of highest value set up on thekeyboard, remain effective to prevent imprints from the cipher types oftheir corresponding typecarriers.

Retirement of the positioning racks 310, during the return strokeof themain drive shaft,lowers the rearward extensions 311" which, in turn,retract the trip bars 513 to idle position, to enable the individualham- Iner latches to become effective, and also lowers the t'ypecarriers514.

The recocking bail 509 restores the ham- .mers to set position and theuniversal catch 518 snaps over them.

In machmes adapted for statement and to their latches, as at 554 andarrange a controllable slotted slide 515 through the slot in which thepivoted tail extends, to shift the tail to its effective and ineffectivepositions, depending upon whether or not it is desired to printcharacters in a single columnor in two separate columns simultaneously.

Such so-called more clearly in split mechanism is shown U. S- patent tolVilgus 26, 1918, to which reference is made for a more completeexplanation thereof.

When the machine is equipped for statement work, it is customary to formthe split between the sixth and seventh rows or denominations of amachine having nine de nominational rows of keys, and to equip the keys117 and the typecarrier' of the ninth row or denomination with monthdesignations. as shown in Fig. 3, the day of the month being set up onthenumeral keys of the seventh and V eighth denominational rows, whenthe tail 518 is shifted to idle position to form the split.

The three extra keys 1.1.7 (Fig. 3) to complete the twelve monthdesignations may be located alongside and to the left of the keys of theninth denomination, and con trol stops 115 located closely adjacent thefile of stops 115 of the same denomination to control the advance of thecorresponding positioning bar 310 and position the proper designatingtypes at the printing line, it belng customary to mount all twelve ofthe month designating types in the typecarrier appropriated to the ninthbank. Prefer- 221 coacts with the month stops 115, 115

. earlier f rm m h ni m-1..

Furthermore, since digits from 1 to 3 only are required in thetypecarrier of the eighth denomination to indicate the day of the month,it is customary to substitute commercial abbreviations, such as BL; DR;CR; etc., in place of the remaining six digits in such denominationaltypecarrier, although for the sake of increasing the capacity of themachine when used as a normal machine, without the split, I have shownbut three such abbreviations. The keys 117 appropriated to thesecharacters, are similarly designated.

A machine thus equipped, and with the split formed between the sixth andseventh 1'0 s of keys, is adapted to perform work, as follows:

Dr 100.00 Jan 31 7.50 Feb 3 21.99

Owing to the formation of the split in the printing section, tripping ofthe individual hammer latch 511 to the right of the seventh row toeffect cipher printing, is interrupted, and if no keys are del ressed inthe right hand rows immediately adjacent the seventh *ow, a blank spaceis left bctween the month designation and the amount, as indicated inthe foregoing example. With the shiftable latch tall 518 in effectiveposition, as when the machine is used as a normal machine, displacementof the hammer latch 511 of the seventh row, will in turn, effect thedisplacement of the hammer latch to the right thereof. and so on.

It is also obvious that the continued tripping operation of the hammerlatches to the left of the split is uninterrupted from the ninth to andincluding the seventh row or denomination.

In view thereof, depression of any of the keys controlling the printingof the commercial abbreintions which, in the present instance, take theplaces of the seventh, eighth and ninth numeral keys in the eighthdenominati-rm, followed by an operation of the main drive shaft, wouldordinarily effoot the tripping of the hammer latch in the seventh bankand the consequent imprint of a cipher immediately adjacent the abbroiation. Thus, in the example above given, the first amount would beerroneously I printed a s- The invention disclosed 'in Pentecost1,282,982. October 22, 1918. is designed to prevent the imprint of suchirrelevant cipher immediately to the right of the abl'ir-eviationcharacter, other than a numeral, and the present invention is directedto mechanism to accomplish the same result and constitutes improvementupon the member toshift the latter to efiective position relatively tothe printing han'imer of that denomination wherein it is desired toeliminate printing, so that although the corresponding"hammer latch istripped, the hammer is held against operation.

There are a considerable number of parts required in themannfactureoft-he patented embodiment, and a very nice adjustment is necessary forits' proper operation.

My i" vention materially reduces thenuinber of parts, and requires butlit le adjustment, and I have contrived to attain the same result in amuch simpler manner than heretofore.

Thus, I provide the detent 221 appropriate to that denomination whereinthe printing is to be eliminated, with a lateral lip 221 extending intothe path or paths of one or more of the stops 115 which control thepositioning of the type characters in connection with which the printingof ciphers is not desired.

In the present instance, the detent 221 appropriated to the seventh rowor denomination carries a lip or projection 221 extending over and intothe paths of the three stops'l15 actuated by the three keys 117 (Fig. 3)of the eighth row or denomination, which stops respectively operate toarrest the corresponding positioning bar 310 and the typecarrier 514: tolocate the types BL, CR and DR at the printing line.

Obviously, depression of any of these three keys in theeighthdenomination will not only set the appropriate stop 115 (Figs. 3and 4:) and lift the correlated detent 221, but will also, by contactwith the lip 221 displace the detent 221 to which the lip is connected,which last-named detent is associated with the denomination wherein itis desired to eliminate printing.

Also, it is plain that the last-named detentmay be displaced by a largeror smaller number of stops in another denomination,-

depending upon the width of the lip 221 Assuming the depression of oneof the character keys 115*, the drive shaft, 'on its forward stroke,withdraws the restraining and restoring bar 205 and frees the entireseries" of positioning bars 310 to the action of their springs 383,which advance the bars until the latter are arrested by the stops 115and 115 projected into their paths or by the effective detents 221 indenominations wherein no keys have been depressed. But depression of anyof the .keys llh displaces the'detent in another denomination, and hencethe pos tioning bar31'0' corresponding therewith is free to. advancetoits extreme forward limit because no stops have been projected in suchdenomination.

As shown in Fig, 2, the positioning bar 310, in advancing to its extremeforward limit, passes over and past the stop 115 which, .when projected,arrests the positioning bar when the lowermost type 9 is at the printingline, the excess throw of the positioning bar operating to lift thetypecarrier 51A connected theretoto locate the lower 'iost type 9 abovethe printing line andout of the path of its denominational plunger 562so that although the. corresponding denominational hammer latch 511 hasbeen tripped by its bar 513, and the'haminer 510 fires, its action isinefiective to print a character because 110- character is located atthe printing line.

To prevent the dislocation relatively to its support, of the firing pin562 correspending with that denomination, printingin' which it isdesired to avoid, I prefer to stati'onarily mount a dummy. type 5G4: inthe corresponding typecarrier 51A, beneath the lowermost type 561,asshown in Figs. 1 and 2. highest position, due to theexcess travelpermitted the positioningbar by the displaced rack detent, it locatesthe dummy type opposite its plunger 562 so that the l. ter, when drivenby the hammer, will strike andbe arrested by the dummy type.

The extent of withdrawal of the restraining and restoring bar issufficient to permit the positioning bar to complete such excessiveadvance, and in practice, theforward end of thispositioning bar. may beslightly shortened or cut off to prevent its arrest by the familiar bail20 i, and the front-supporting arm may be recessed, as at 312 to As thetypecarrier reaches its insure the completion of the excessive stroke. 1

To compensate for such shortening of the positioning bar so that, underordinary circumstances, its detent 221' will arrest it, to position theuppermost or cipher type at the printing line, I make the correspondingdetent 221 slightly longer to extend farther rearwardly.

Furthermore, in order to afford sufficient clearance for the extremeascent of the corresponding rearward extension 311, I may cut away thefamiliar universal? extension- 2 rresting bar 529 as at 529 7 Thesechanges, however, are merely structural. it being plain that otherchanges may be adopt-ed to provide the necessary clearances, withoutdeviating from my inven tion. I 1

While the herein illustrated embodiment of my invention, discloses amechanism wherein the drive member is permitted an excess travel toposition the regular printing types of the typecarrier above theprinting line, and locate dummy" atitheiprinta ing line, to render theimpact of the hammer ineffective, the dummy is employed merely to arrestthe plunger or firing pin against accidental disengagement with itssupport, and may be dis iensed with in in- V stances Where the hammersdirectly impinge against the types. In such instances, the hammer wouldmerely contact the front edge of the typecarrier at the extreme end ofit throw.

y The drive member 310 during its retir ment, after such excessiveadvance, will turn its corresponding counter 4:90 a com plete revolutionor semi-revolution, as the case may be, depending upon whether or notthe counters carry one or two series of numerals arranged in tandem, andthis ro-. tation will trip the usual carrying mechanism to add 1 to thecounter of next higher denomination, but since the regisJration on thecounters to the left of the split is disregart ed in any event, whenprinting month designations, such rotation is of no consequence.

Other changes and alterations may be made in the form and arrangement ofthe parts set forth, without den tic spirit and scope of my invention.

What I claim as new, is V 1. In a'calculating machine, the combinationwith a plurality of denominational trains of accumulating and printingmech anism, each train including a file of manually-settable stops; atypecarrier provided with a series of types; a hammer to impress thetypes on the paper; a drive member for the typecarrier; the drive memberadapted to coact with the stops; and a detent to arrest the drive memberin case no stops are set in the path thereof; the detent adapted to bedisplaced by any of the stops n corresponding denomination; of means toenable a stop in one denomination to control the drive member in anotherdenomination, whereby to prevent type impressions in the last-nameddenomination.

2. In a calculating and listing machine, the combination withdenominational trains of mechanism, each train including a drive member;a file of stops shiftable into and out ofetfective position, tovariously arrest the drive member; a detent displaceable by the stops,to arrest the drive member when no stops are shifted to effectiveposition; a typecarrier and types controlled by the drive member, toposition that type at printing line which corresponds with theparticular effective stop; and a printing hammer to impress thepositioned type; of means to enable a stop in one denominational trainto control the excursions of the drive member in another denominationaltrain; and a dummy mounted in the type carrier associated with suchlast-named drive member, and positioned at the printing line when theexcursions of the typecarrier and its drive member are controlled by thestop in another denominational train, to arrest the printing hammer.

3. In a calculating and listing machine, the combination withdenominational trains of mechanism, each train including a drive member;a file of stops shiftable into and out of efiective position, tovariously arrest the drive members; a detent displaceable by the stops,to arrest the drive member when no stops are shifted to effectiveposition; a typecarrier and types controlled by the drive member, toposition that type at the printing line which corresponds with theparticular eii'ective stop; and a printing hammer to impress thepositioned type; of means operated by a stop in one denominationaltrain, to control the excursions of a drive member in anotherdenominational n whereby the typecarrier associated with the drivemember so controlled; positions no type at the printing line.

4:. In a calculating machine, the combination with a plurality ofdenominational trains of accumulating and printing mechanisms, eachtrain including a file of manually-settable stops; a typecarrierprovided with a series of types; a drive member for the typecarrier; thedrive member adapted to coact with the stops to position the typecarrierwith the proper type at the printing line; a printing hammer; and adetent to arrest the drive member in case no stops are in the paththereof; the detent adapted to be displaced by any of the stops in itscorresponding denomination; of means to enable a stop in onedenomination to control the drive member in another denomination,whereby the latter is permitted an excessive travel to shift itstypecarrier to a position wherein no type are located at the printingline.

5. In a calculating machine, the combination with a plurality ofdenominational trains of accumulating and printing mechanisms, eachtrain including a file of stops shiftable to and from effectiveposition; a typecarrier having a series of types; means to impress thetypes when located at the printing line; a drive member for the typecarrier, whose excursions are variously arrested by the stops; and adetent to arrest.

the drive member in case no stops are shifted in the path thereof; thedetent adapted to be displaced by any of the stops in its correspondingdenomination; of means to enable a stop of one denomination to controlthe drive member of another denomination, including a projection fromthe detent appropriate to-the denomination whose drive member is to becontrolled, which pro ection lies in the path of at least one of thestops in another denomination, and a dummy type mounted in thetypcarrier actutypecarrien having a series of types; means.

to impress'the types when .locatedat the printingsline; a. drivememberltor the typecarrier, Whose excursions are variously arrestedbythe stops; :anda detent toarrest the drive member in case no stops.are shifted in the path thereof; the .detent adapted tobe displacedbyany of the stops in itszcorresponding denomination; of means toenable:a stop of one denomination to controlthe drive member of anotherdenomination, including projection from the detentwappropriated to thedenomination Whose drive member. is to be controlled, which projectionlies inthe-patlrof at' least one/o1? thestops in.anotherdenomination, toenable'the controllingstop to displace the last named idetent and permitthe drive member and typeoarrier correspondingiw-ith such detent, anexcesstravel tozshift allthe types in-the typecarrierpast the printingline.

7, Inrazcalculatingmachine the combination with ,a plurality .ofdenominational trains of accumulating-and printingvmechanism, eachtrainincluding a row of keys; a 7 file of settable stops controlled thereby;a drive member, the extent of whoserexcursions is regulated bythe stops;a detent displaceable by any of the stopsin its file to arrest the drivemember When the stops are inactive; a typecarrier positioned by thedrive member relativelyto the printing line, and bearing a row of typescorresponding to the designations on the consonant I'OW voft keys; aprinting hammer to impress the type positioned 'attheprinting line; valatch to retain the printing hammer inoperative; means to trip theadjacent latch associated With the denominational train of accumulatingand printingmechanism' to the right; and a dummy type. on one ofthetypecarriers in addition torthe printing types; of 7 means controlled byone or more stops in one denominational train to displace the detentassociated with the drive member of another denominational train,whereby to )ermit themaXim-um advance ofthe drive member and theconsequent positioning of its typecarrier relatively to p the printingline to bring the dummy. type opposite the, printing hammer, andthusrender the: printing action of the hammer r inefiective.

FRANK Britannia.

